Rock Michigan Climate Data

Monthly Average Climate Data for Rock Michigan

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January7.9 °F24.4 °F1.77 in.
February7.0 °F27.7 °F1.66 in.
March15.6 °F37.1 °F1.98 in.
April27.6 °F49.2 °F2.96 in.
May39.7 °F63.2 °F3.55 in.
June49.3 °F72.9 °F3.89 in.
July54.2 °F78.0 °F3.78 in.
August52.6 °F76.6 °F3.46 in.
September45.5 °F68.4 °F4.14 in.
October34.7 °F54.4 °F3.96 in.
November25.2 °F40.4 °F2.77 in.
December14.6 °F29.3 °F2.15 in.
Annual31.2 °F51.8 °F36.07 in.

Climate Data for Rock Michigan

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateJun. 1 - Jun. 10
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 5a : -20°F to -15°F
Plant Hardiness Zone - 2012Zone 4b : -25°F to -20°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year